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Uncovering the pathogenesis of essential hypertension via mechanobiological approach

Research Project

Project/Area Number 22K19761
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 59:Sports sciences, physical education, health sciences, and related fields
Research InstitutionNational Rehabilitation Center for Persons with Disabilities

Principal Investigator

Sawada Yasuhiro  国立障害者リハビリテーションセンター(研究所), 病院 臨床研究開発部(研究所併任), 臨床研究開発部長 (50313135)

Co-Investigator(Kenkyū-buntansha) 高野 弘二  国立障害者リハビリテーションセンター(研究所), 研究所 脳機能系障害研究部, 研究員 (00510588)
齋藤 茂芳  大阪大学, 大学院医学系研究科, 准教授 (40583068)
崎谷 直義  国立研究開発法人産業技術総合研究所, 生命工学領域, 研究員 (30824859)
Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Keywordsメカニカルストレス / 高血圧 / 間質液 / 流体剪断力 / メカノバイオロジー / 本態性高血圧 / 生体恒常性維持
Outline of Research at the Start

脳への物理的刺激による、運動の高血圧改善効果の再現のメカニズムを追究することで、本態性高血圧の病態解明を目指す。これにより、高血圧の治療・予防という観点からの運動の最適化や、肢体不自由障害者や一部の高齢者等、運動したくてもできない者にも適用可能な擬似運動療法の開発の基盤を構築する。さらに、脳内メカニカルストレスの変容という、これまでには想定されてこなかった病因概念を確立し、認知障害や精神・神経疾患等、脳機能低下が関連する他の疾病の病因解明・新規治療法開発への端緒を提供する。

Outline of Final Research Achievements

We conducted a comparative study between normotensive and hypertensive rats using a method where Dr. Saito captured MRI images of the brainstem morphology, which were subsequently analyzed by Dr. Takano employing AI techniques. We discovered that hypertensive rats exhibit a different angle between the long axis of the brainstem and that of the cerebral cortex compared to normotensive rats. The hypertensive induction experiments on normotensive rats, led by Dr. Sakitani from the National Cerebral and Cardiovascular Center, were unfortunately interrupted due to his relocation to the National Institute of Advanced Industrial Science and Technology.
Ultimately, we submitted a paper demonstrating hypertension improvement through mechanical stimulation to the head, which forms the basis of our study. After organizing and submitting the required data, we successfully published our findings in a high-impact international academic journal.

Academic Significance and Societal Importance of the Research Achievements

肢体不自由障害者、一部の高齢者など、運動したくても運動できない者にも適用可能な簡便かつ日常使用可能な擬似運動刺激負荷装置の開発の基盤を形成することができた。極めて罹患者が多く、主要な死亡リスクファクターの一つでありながら、原因不明とされてきた本態性高血圧症の病態解明の端緒を築くことができた。これまで不明であった「運動の本体・正体」について明確に示すことができた。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Interstitial-fluid shear stresses induced by vertically oscillating head motion lower blood pressure in hypertensive rats and humans2023

    • Author(s)
      Murase Shuhei、Sakitani Naoyoshi、Maekawa Takahiro、Yoshino Daisuke、Takano Kouji、Konno Ayumu、Hirai Hirokazu、Saito Taku、et al
    • Journal Title

      Nature Biomedical Engineering

      Volume: 7 Issue: 11 Pages: 1350-1373

    • DOI

      10.1038/s41551-023-01061-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 運動の高血圧改善効果は足の着地時に生じる頭部への衝撃を介する2023

    • Author(s)
      﨑谷直義, 澤田泰宏
    • Journal Title

      実験医学

      Volume: 41 Pages: 3160-3163

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Application of Passive Head Motion to Generate Defined Accelerations at the Heads of Rodents2022

    • Author(s)
      Maekawa Takahiro、Sakitani Naoyoshi、Ryu Youngjae、Takashima Atsushi、Murase Shuhei、Fink Julius、Nagao Motoshi、Ogata Toru、Shinohara Masahiro、Sawada Yasuhiro
    • Journal Title

      Journal of Visualized Experiments

      Volume: - Issue: 185 Pages: 363100-363100

    • DOI

      10.3791/63100

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 運動による健康維持・増進の分子基盤解明に基づく、ロコモティブシンドロームという概念の妥当性と先進性の確立:“G” makes sense.2024

    • Author(s)
      澤田泰宏
    • Organizer
      ロコモサミット
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 運動で頭部に生じる衝撃は、 頭側延髄腹外側野の間質液流動の促進を介して、 アストロサイトの機能を制御し、高血圧を改善する2023

    • Author(s)
      﨑谷直義,前川貴郊,岸拓弥,篠原啓介,吉野大輔,高野弘二,郷地慶,越智広樹,篠原正浩,澤田泰宏
    • Organizer
      第59回高血圧関連疾患モデル学会学術総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 運動による健康維持・増進の分子基盤2023

    • Author(s)
      澤田泰宏、﨑谷直義、村瀬修平、高野弘二、篠原正浩
    • Organizer
      第10回日本サルコペニア・フレイル学会大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 脳へのメカニカルストレスは高血圧を改善する2023

    • Author(s)
      澤田泰宏、﨑谷直義、村瀬修平、高野弘二、篠原正浩
    • Organizer
      第41回日本骨代謝学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Challenging muscular dystrophy or dystrophin research via mechanobiological strategy2023

    • Author(s)
      Yasuhiro Sawada, Naoyoshi Sakitani, Takahiro Maekawa, Daisuke Yoshino, Kouji Takano, Takuya Kishi, Keisuke Shinohara, Ayumu Konno, Hirokazu Hirai, Takamasa Sakai, Kohzoh Yoshino, Motoshi Nagao, Masahiro Shinohara
    • Organizer
      2023年度筋ジストロフィー研究班会議
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Alleviation of hypertension through anti-inflammatory effect of brain-targeted mechanical intervention with passive head motion2022

    • Author(s)
      Yasuhiro SAWADA, Naoyoshi SAKITANI
    • Organizer
      Keystone Symposia
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Brain-targeted mechanical intervention using passive head motion can be antihypertensive2022

    • Author(s)
      Yasuhiro SAWADA, Naoyoshi SAKITANI
    • Organizer
      The 29th Scientific Meeting of the International Society of Hypertension
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Brain-Targeted Mechanical Intervention Using Passive Head Motion Can Have an Antihypertensive Effect2022

    • Author(s)
      Yasuhiro SAWADA, Naoyoshi SAKITANI, Takuya KISHI, Keisuke SHINOHARA, Hirotsugu TSUCHIMOCHI
    • Organizer
      American Heart Association Scientific Sessions 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Brain-targeted Mechanical Intervention with Passive Head Motion Can Have an Antihypertensive Effect2022

    • Author(s)
      Yasuhiro Sawada, Naoyoshi Sakitani, Takahiro Maekawa, Daisuke Yoshino, Kouji Takano, Takuya Kishi, Keisuke Shinohara, Ayumu Konno, Hirokazu Hirai, Takamasa Sakai, Kohzoh Yoshino, Motoshi Nagao, Masahiro Shinohara
    • Organizer
      Gordon Research Conferences: Angiotensin
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 受動的頭部運動の高血圧改善効果2022

    • Author(s)
      澤田泰宏, 崎谷直義
    • Organizer
      第10回定量生物学の会
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 健康促進装置2023

    • Inventor(s)
      吉野大輔、奥野拓、竹之内隆伸、﨑谷直義、澤田泰宏
    • Industrial Property Rights Holder
      株式会社ソミノヤ
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report

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Published: 2022-07-05   Modified: 2025-01-30  

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